Federica Paci Elisa Bertino Sam Kerr Aaron Lint Anna Cinzia Squicciarini Jungha Woo VeryIDX - A Digital Identity Management System for Pervasive Computing Environments. 268-279 2008 SEUS http://dx.doi.org/10.1007/978-3-540-87785-1_24 conf/seus/2008 db/conf/seus/seus2008.html#PaciBKLSW08